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Groups > linux.kernel > #1318396

[PATCH 09/10] x86/vdso: Use static_cpu_has()

From Borislav Petkov <bp@alien8.de>
Newsgroups linux.kernel
Subject [PATCH 09/10] x86/vdso: Use static_cpu_has()
Date 2016-01-26 22:20 +0100
Message-ID <qVjbQ-1GJ-21@gated-at.bofh.it> (permalink)
References <qVjbQ-1GJ-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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From: Borislav Petkov <bp@suse.de>

... and simplify and speed up a tad.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andy Lutomirski <luto@amacapital.net>
---
 arch/x86/entry/vdso/vma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c
index 5471ac362147..6b46648588d8 100644
--- a/arch/x86/entry/vdso/vma.c
+++ b/arch/x86/entry/vdso/vma.c
@@ -255,7 +255,7 @@ static void vgetcpu_cpu_init(void *arg)
 #ifdef CONFIG_NUMA
 	node = cpu_to_node(cpu);
 #endif
-	if (cpu_has(&cpu_data(cpu), X86_FEATURE_RDTSCP))
+	if (static_cpu_has(X86_FEATURE_RDTSCP))
 		write_rdtscp_aux((node << 12) | cpu);
 
 	/*
-- 
2.3.5

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Thread

[PATCH 00/10] tip-queue 2016-01-26, rest Borislav Petkov <bp@alien8.de> - 2016-01-26 22:20 +0100
  [PATCH 09/10] x86/vdso: Use static_cpu_has() Borislav Petkov <bp@alien8.de> - 2016-01-26 22:20 +0100
  [PATCH 03/10] x86/asm: Tweak the comment about wmb() use for IO Borislav Petkov <bp@alien8.de> - 2016-01-26 22:20 +0100
  [PATCH 07/10] x86/alternatives: Add an auxilary section Borislav Petkov <bp@alien8.de> - 2016-01-26 22:20 +0100
  [PATCH 01/10] x86/asm: Add condition codes clobber to memory barrier macros Borislav Petkov <bp@alien8.de> - 2016-01-26 22:20 +0100
  [PATCH 06/10] x86/cpufeature: Get rid of the non-asm goto variant Borislav Petkov <bp@alien8.de> - 2016-01-26 22:20 +0100
    Re: [PATCH 06/10] x86/cpufeature: Get rid of the non-asm goto variant Brian Gerst <brgerst@gmail.com> - 2016-01-27 04:40 +0100
      [PATCH -v1.1 8/10] x86/alternatives: Discard dynamic check after init Borislav Petkov <bp@alien8.de> - 2016-01-27 09:50 +0100
      Re: [PATCH 06/10] x86/cpufeature: Get rid of the non-asm goto variant Borislav Petkov <bp@alien8.de> - 2016-01-27 09:50 +0100
        [PATCH -v1.1 06/10] x86/cpufeature: Get rid of the non-asm goto  variant Borislav Petkov <bp@alien8.de> - 2016-01-27 09:50 +0100

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